Automatic shuttle mechanism tor adding machines



F. LINK 1,862,754

AUTOMATIC SHUTTLE MECHANISM FOR ADDING MACHINES June 14, 1932.

Filed Sept.' 19 1927 6 Sheets-Sheet l Ira/em: all

June 14, 1932. I |NK 1,862,754

I AUTOMATIC SHUTTLE MECHANISM FOR ADDING MACHINES Filed Sept. 19, 1927 e Shets$heet 2 123456 IOOOO 3450 .1 -11 14 1932. LINK AUTOMATIC SHUTTLE MECHANISM FOR Asnnw MACHINES Filed Sept. 19, 1927 F. LINK June 14, 1932.

AUTOMATIC SHUTTLE MECHANISM FOR ADDING MACHINES Filed Sept.

19, 192'. 6 Sheets-Sheet 4 mew," 1 01262 1' N RH F. LINK June 14, 1932.

AUTQMATIC SHUTTLE MECHANISM FOR ADDING MACHINES Filed Sept. 19 1927 6 Sheets-Sheet 5 Mentor 1 01 86 ,liflk Attorngy F. LINK 1,862,754

,AUTOMATIC SHUTTLE MECHANISM FOR ADDING MACHINES I June 14, 1932.

Filed Sept. 19, 1927 6 Sheets-Sheet 6 jfiuenl r fires! 122k .Patented June 14, 1932 UNITED STATES PATENT OFFICE FOREST LINK, OF CINCINNATI, OHIO, ASSIGNOR TO REMINGTON RAND INC., 01 TONAWANDA, NEW YORK AUTOMATIC SHUTTLE MECHANISM FOR ADDING MACHINES Application filed September 19, 1927. Serial No. 220,324.

This invention relates particularly to a shuttle mechanism for shifting the paper carriage on an adding and recording machine a number of equal units iii-one direction without actuating the paper feed mechanism, and then shifting the carriage back in the opposite direction in one long step and at this period operating the paper feed mechanism.

An object of this invention is the provision of mechanism for shifting a carriage two or more steps in one direction and then shifting it back in one lon step.

It is also an ob ect to provide positive operating means for shifting a carriage two or more steps in one direction and positive operating means for shifting it. back into its original position in one long step.

It is a further object to provide a construction in which the means for shifting the carriage in the reverse direction is automatically disconnected from the driving shaft 11 on operationof the means for shifting t e carriage forwardly, and is-maintained disconnected until the carriage is moved into its most forward position at which time the means for shifting the carriage in a reverse direction is automatically connected with the driving shaft.

Another object is to provide mechanism to disable the line spacing means during two or more forward shifting movements ofthe carriage and then automatically cause it to function during a reverse long movement of i the carriage into its original position.

With these and other incidental objects in view, the invention consists of the features and combinations herein described and claimed, reference being had to the accompanying drawingsin which: 1

Fig. lis a left side view of a Dalton adding machine with the side plate partially cut away to show the carriage drive lever system.

Fig. 2 is a partial front view of the same, with a portion broken away to show the manipulative control of the normalizer mechanism.

Fig. 3 is an enlarged View of the normalizer safety device. p

Fig. 4 is a view of a sheet columnized by the three position carriage shuttle mechanism.

Fig. 5 is a view of asheet columnized by a four position carriage shuttle mechanism.

Fig. 6 is a View of a sheet c'olunmized with the carriage in the normalized or vertical tabulating position.

Fig. 7 is a front view of the adding recording machine and shows three positions of the carriage.

Fig. 8 is a perspective view of the lever mechanism leading ing or shuttle mechanism.

Fig. 9 is a right side view of the 180 carriage driving mechanism, showing the driving rack in the moved position.

5 and up to the carriage shift- 0 Fig. 10 is a plan section on the line 10-10 of Fig. 9.

Fig. 11 is a plan view of a three column carriage shifting or shuttle mechanism with the carriage and other portions of the machine removed.

Fig. 12 IS a partial plan section on the line 12-12 of Fig. 14.

Fig. 13 is a plan view of a four column earriage forwardly shifting drive link and its drive disc.

Fig. 14 is a front view of the carriage shifting or shuttle mechanism with the carriage and other portions of the machine removed.

Fig. 15 is a partial view of the drive disc and the forwardly shifting drive link during 8 the return stroke. v

Fig. 16 is a cross section on the line1616 of Fig. let with the standard machine mechanism in dot and dash lines and the carriage driver arm in the middle position.

Fig. 17 is a cross section of the same, showing the action of the tabulator stop coming into efl'ect.

Fig. 18 is a view of a standard paper feed pawl mechanism.

Fig. 19 is a section on the line 19-19 of .in columns I), b and b" ments in shuttle mechanisms and comprises positively operating driving means for shifting the carriage two or more steps or spaces forward in one direction, one step during an operation ofthe machine, and then returning the carriage in one movement during a sin le operation of the machine. Provision is a so made for disabling the paper feed during the forward shifting of the carriage, an

again permitting it to function "as the carriage is returned.

' The mechanism which is about to be described is incorporated into a Dalton adding machine which has the usual keyboard 20, (Fig. 1). A sequence of als being impressed upon the said keyboard and the handle 21 being moved down to point A and then released, the desired amounts will be entered intoan accumulator or not as desired and impressed upon a record sheet in the usual carriage 22. The carriage will then immediately after the impression be shifted to position a, (Fig. 7), and when the next operation "v is performed, the carriage will be shiftedto position 0.. During the third operation the carriage will be shifted to the right to the original position shown in heavy lines. During this return movement of the carriage, the line spacing mechanism is actuated and the machine is ready for another cross tabulation in three columns.

Fig- 4 shows the results of this recording, in which the numerals 123456, 10000 and 50 respectively, constitute the impressions mentioned in the above operations as the carriage moves to the left, the line spacing mechanism being actuated during the return movement of the carriage so that the next impression in column b will be immediately under 123456. Columns 0, a and 0 show that a second may be printed on the same'sheet by shift ng the carriage to another operating position which will be hereinafter described.

A series of four, five or more columns may be made with mechanism falling under this invention. Fig. 5 shows the result of a series of a four column mechanism shown in Fig.

Vertical tabulation, as shown in Fig. 6, is also made possible on machines equipped with this improvement bv a normalizing mechanism hereinafter described.

The carriage shuttle or shifting mechanism is driven thru a'lever system by the operating handle 21, movable thru the arc indicated in Fig. 1. The handle drives an arm 24 thru a shaft 25. The arm operates a bell crank 26 pivoted at 27. (see also Fig. 8), to which it is operatively connected by a link 30. A rack carrier 31 slidably mounted for horizontal movement on studs 32 is driven by the bell crank 26 thru a connecting link 33, pivoted on the carrier at 34 and connected to a pin 35 on the bell slot 36, an operative connection between the the desired numerseries of columns crank by a radial entry link and pin 35 being maintained by a tension spring 37 urging the link in Fig. 1. Movement transferred thru the mechanism described will shift the carrier 31 from the shown position at E to the dotted position at B and back again upon operation of the handle 21.

As hereinafter disclosed, to normalize the machine it is necessary to disconnect the rack carrier 31 from the operatin means described. =This is accomplished y throwing the link 33 in a counter-clockwise direction, (Fig. 1), so that the pin 35 will clear the shoulder 38 in the slot 36 in its arc of travel. This link throw comprises a lever 40, (Figs. 1 and 8), pivoted at 39 and having its rear arm engageable with a pin 41 in the link 33,

its forward arm having a bent fork 42 at its extremity which engages a finger 43 in a throw crank 44, (Figs. 2 and 8). The throw crank comprises an operating arm 45 and is pivoted at 46 on a bracket on the machine frame. This crank when put into the position C, (known hereinafter as the normalizing position), will rotate the link throw lever 40 in a clockwise direction, (Fig. 1), which will engage the pin 41 and move the link 33 in a counter-clockwise direction, thus disengaging the link from the pin 35. The throw crank is in the normalizing position when it bears against the pin 49, Fig. 2. The usual cam trigger 50, (Fig. 2), acting against a pin 51 in the arm 45 insures the maximum throw of the crank in either direction.

To insure against an operation of the throw crank while the handle 21 is partly operated, a safety deviceis provided which comprises a lever 52, (Figs. 1, 3 and 8), pivoted to the machine at 53, (Fig. 3), and provided near its upper end with a number of teeth engageable with a tooth on ashoulder 54 on the lever -10, the shoulder being beveled to match thesaid teeth. The lever 52 is operated clockwise by an extension 55 of the rack carrier 31 and is returned by a spring 56. Thus when the rack carriertravels toward position B, Fig. 1), the lever 52 will be moved counterclockwise by the spring 56 into engagement with'the tooth on the shoulder 54, thereby locking the entire throw lever mechanism as well as the line spacing mechanism, which will be described later.',

The object is now to transfer the reciprocating movement of a rack 58, Figs. 8, 9 and 14, fastened to the rack carrier 31. to the shuttle carriage the said shaft 180 in a clockwise direction on each operation of the handle 21. This is accomplished by a gear drive in which a segment gear 60, mounted-on stud 61 is alternatively driven in a clockwise and counterclockwise direction as viewed in Fig. 8. A car 62 mounted on the stud 61 immediately above the segment gear 60 receives the counter-clockwise movement thru its clutch teeth drive shaft 59 and move clockwiseas viewed 63, (Fig: 9),whi ch enga e similar teeth on the segment gear 60. lTpon the clockwise movement of the segment gear60, the clutch teeth cam the gear 62 upward against a thrust spring 64 and disengage fromeach other.

Thus the ar 62 moves in only a counterclockwise 'rection thereb gear 66, to which ithas the necessary ratio, aclockwise movement of 180 to the shaft '59 for each operation ofthehandle, all of'the action of which takes place on thereturn stroke of the handle 21. To prevent the friction of the camaction between the clutch teeth from rotating gears; 62 and 66, a' stop cam 67, (Figs. 9, and 14), is provided, said cam being fixedly secured to shaft 59, and having two detents 7 2 for receiving-a roller. 68 secured to a lever 69' pivoted on stud 61. The lever 69 is urgedcouriter-clockwise by a spring 76 fastened to an \arm' on abracket 71. The detents 72 are timed to come oppositethe roller 68 and to receive said roller at the end of the return stroke of the lever- 21 or when the rack carrier is in position E, F igs. 1 and 10. To insure this action of the lever 69, the leveris provided with a side extension7 3, F igs. 10 and 14, which carries a pin 73a which is in line with a lug 74 on the rack'carrier 31: At the end ofthe'return stroke of the handle 21, this lug 74 pushes the pin 73a and the lever 69 and forces the roller 68 into one of the detents 72. v

The shaft 59 extends vertically thru a bearing in a bracket 74a seen in dotted lines in Fig. 14, a shuttle carriage return'disc 75, and the shuttle carriage forward drive disc 76, tespectively, the discs being secured to the sha Y The disc 7 5 has upon its upper surface two 49 pins 77 and 7 7, (Figs. 11, 12 and 14) diametrically opposite each "other. The disc 76 has two similarly mounted pins 78 and 78', the

distance'between the centers of the pins 78 and 78 in disc 76 being exactly one half the distance between the centers of the pins 77 and 7 7 in disc 7 5. Both discs are so mounted on shaft 59 that the pins 77, 7 7', 78 and 78' are in the same vertical plane. The disc 76 is I larded against side thrust by bearing 59 racket 79 which encloses it leaving the surfaces of the bearing bracket and the disc in the same horizontal planes.

The carriageis driven-from the shaft 59 by a lever mechanism comprising a carriage drive lever 80, (Figs. 1-1, 14, 16 and 17), pivoted to themachine frame by a stud 81, and

driven by means of a forward drive link 83 (Fig. 11). In travelling to the left, the free end 82 of the drive lever 80 stops in three 63 positions G, H, and I as shown in Fig. '11.

The said drive link 83' is. pivoted on the lever u 80 by means of a stud 84 and has on one of its edges to the left of said stud two slots 87 .and 88, Fig. 11, for receiving the pins 78 and 78' in thedisc 76 as hereinafter described.

impartingthru a Thedrive link is urged clockwise by a tension s ring 85 fastened tothe right hand end of t e link, thereby causing it to bear against a sto bracket 86, Figs. 11 and 14, on which it sli es. The left handend of the link is urged in a downward direction, (Fig. 14), against the disc 76 by a .tensionspring 92 fastened tolthe pivot stud 84 and the right hand end of the link When the forward drive link 83 is in its first position at G, (Fig. 11), the end slot 87 engages the pin. 78-; and when thru the drive mechanism the shaft 59 and the discs 7 5 and 76 turn 180 clockwise, the pins 78 and 78. a

reverse their respective positions, the pin 78 entering the second slot 88, the-link and drive lever being carried to the left by the pin 78. The third position is reached by operating the machine with the pin 78 (now on the right hand side) in slot 88, the pin 78 disengaging from the slot 87 as the machine is operated. The carriage is now in the farthest left hand position to which itsis movable by the meansdescribed, and will be carried back to its first position inone operation of the machine by means of a return drive link 89. The said return link is pivoted on the pivot stud 84 just below the drive link 83, and has on the lower edge of its left hand end as viewed in Figs. 11 and 12, a slot 90, *(Fig. 12), for receiving the pins 77 or 7 7 in the disc 75. The return link is urged counter-clockwise by ,the spring 85, (Fig. 11), which is fastened to an arm on the link on the left of .the pivot 84. The other .end of the spring 85 is fastened to the forward drive link 83, as previously explained. The left hand end-of the return link, like that of the forward drive link, is urged downward by a spring 91 fastened to the stud 84 and to an extension 93 on the return link. When the carriage isbeing driven to the left by the forward drive link 83, the return link 89 is of course carried with it until the third position is reached, when in this case, the pin 77 enters the slot 90. When the machine is again operated, the pin 77 drives the return link, and thereby the drive arm 80, back to the first position. During the second operation, when the return link is cammed over the shaft 59-as shown in Fig. 12, the pin 77 passes underthe said-link which is provided with clearance for this condition by being raised from the disc 75 by the walls of its entry slot which are slightly depressed or offset. The counter-clockwise movement of this link is limited byvthe shaft 59 against which it bears during the forward driving strokes. During the return stroke when the forward drive link is carried to the right, it must pass over the pin 78' as shown in Fig. 15. A jog 94 facilitates this movement and also provides pin clearance in the third position of the link. A guard pin 95, Fig. 11, prevents disengagement of the forward drive frame.

link during the drive stroke by acting against cam edges 96 onthe link.

As previously mentioned, after three columns have been listed, the line spacing mechanism operates to feed the paper. The usual line spacing mechanism is used as shown in dotted structure in Fig. 16 where a cam 96 isdriven to the position M upon every operation of the handle 21. A bar 97 on the carriage carries an arm 99 which is caused to follow the cam 96 by pressure from a lever 98. This clock ise movement and return of the arm 99 ks the bar 97 which operates a paper feed mechanism 99 as shown in Fig. 18. To get three parallel columns of figures this line spacing mechanism must be allowed to function only during the third operation of the machine. For normalized or vertical tabulating operation this mechanism must be free for every stroke.

In this mechanism the line spacing is controlled by holding back the lever 98 in the position shown in oted on a shaft 100, (Fig. 8), and is urged counter-clockwise by a spring 101, fastened to a pin 102 on the lever and to the machine The lever is locked in the home position by a substantially U-shaped latch 103, (Fig. 19)., pivoted on a stud 104 suitably supported in the machine. One arm 105 of the latch has a hook recess 106 for receiving the pin 102. The other arm 106' has a spring anchor 107 and a pin 108 on one side, and a pin 109 on the other side. The latch is urged counter-clockwise by a spring to the spring anchor on the shaft 100.

To normalize the line spacing mechanism, it is necessary to remove the hook recess 106 out of the path of the pin 102. This is accomplished by a lever system operated by the shoulder 54 on arm 40, Figs. 1 and 3, which when depressed carries with it a lever 112, Figs. 3 and 8, connected thereto by a fork 113. The lever 112 is pivoted on the shaft 39 and drives a lever bearing 114 thru a link 115. The lever bearing 114 carries the arm 111 which acts in a rearward direction against the pin 108 on latch 103 causing the said latch to move clockwise suflicient to clear the pin 102 as previously mentioned. When this lever system is operated for releasing the carriage shifting mechanism, latch 103 is controlled by an arm 115a slidably mounted on. the machine frame by means of a stud 117, (Figs. 11 and 14), andon the shaft 100. (Fig. 8). This arm is actuated by a heel 80 integral with the drive lever 80. This heel strikes a pin 116 in thearm 115a at the end of the second stroke, causing it to move rearwardly and thrua pin 117, (Fig. 19), carried by a release lever 118, causing the lever 118 to move counter-clockwise which pushes against the pin 109 on the latch 103, turning it clockwise which frees thejmech- Fig. 16. This lever ispivone-third of the distance 110 fastened- 107 and to anarm 111.

1 mechanism.

the

anism to. act as previously described, and on the return portion spacin takes place and the arm 115a is also release d by the heel 80 which frees the latch 103 to once more drop over the pin 102.

The drive arm 80 is connected to the carriage-frame by enterin a slot 119, Fi 16, in a frame bar 200 of tie carriage. ig. '17 shows the mechanism for removing the arm 80 from this slot, in which a manual rocking of the usual carriage tabulator bar 120 and the tabulator stop 121, acting on the usual Wlll cause an extension tabulator stop 123,

depress the drive arm so 122 of the latter to as to disengage from the slot 119 The carriage may then be moved to a second operating position, the drive arm entering a second similar slot 119'. of the drive arm is to produce the double set of three columins as shown in Fig. 4. The

said am always is urged in an upward direc tion'by a spring 124 fastened to a heel on the said arm and to the machine frame. The usual carriage rail 125 is of course properly slotted at 126 to clear the drive arm.

.Arfour colunfn shuttle mechanism is shown in Fig. 18. In this mechanism, the pins 78 and 7 8 .are spaced apart a distance equal to between the pins 77 and 77". The forward drive lever is provided with three notches 87, 88 and 88a, for cooperation with said pins, and with hearing portions 201, 202 and 203 for cooperation with the stop bracket 86. The operation of this adaptation of. the general principles of the invention is obvious from the description of the operation of the three column shuttle While the embodiment of the invention herein disclosed is admirably suited for the.

purposes-mentioned, it is to be understood that the invention is not limited to the form .of embodiment disclosed and is susceptible of other forms coming within the scope of the following claims.

What is claimed is 1. In a machine of the class described, the combination with a shiftable carriage and a driving shaft; of a disc carried by said shaft, pins on said disc, and means operatively connected to said carriage and provided with notches alternately engageable with said pins in the same direction. I 2. In a machine of the class described, the

3. In a machine of the class described, the

of the third stroke the line This double setting 1 for shifting said carriage a plurality of steps combination with a shiftable carriage and a driving shaft therefor; of a plurality of sets of pins rotatable with the shaft, and a plurality of spring pressed notched arms operatively connected to the carriage, each engageable by its notches with a set ofpins for driving said carriage.

4. In a machine of the class described, the combination with a shiftable carriage and a driving shaft therefor; of a plurality of sets of pins rotatable with said shaft, a plurality of notched arms operatively connected to said carriage and each adapted to engage a set of pins, the arms engaging in opposite directions to cause the carriage to be shifted in opposite directions as the arms are alternately engaged and disengaged.

5. In a machine of the class described, the

combination with a shiftable carriage and driving means therefor; of-a disc operated by said driving means, diametrically disposed pins on said disc, an -"arm connected to said carriage, and a notched portion on said arm off-set with respect to the main body of said arm with its notch alternatelyengageable with said pins, said off-set portion spacing to pass freely under said arm when said arm said arm from said pins to permit said pins is in an intermediate position.

6. In combination in a recording machine comprising a main operating shaft having a definite movement at each operation of the machine and a laterally shiftable carriage;

of means inherently constructed to automate ically move into position to connect the carriage positively with the operating shaft to move the carriage forwardly, and other means inherently constructed to automatically move into position to connect the carriage positively with the operating shaft to return the carriage.

7 In a machine of the class described,.the' combination of a laterally shiftable carriage and a driving means therefor; of means for alternately connecting the carriage to the driving means for forward'and return movements, said connectin means comprising two pairs of books and pms alternately movable into connecting relation.

8. In combination in a recording machine, a shiftable-carriage, a driving means for shifting the carriage comprising an element moved to the same extent at each operation thereof, a link adapted to operatively connect the carriage to said driving means to shift the carriage one step forward at each operation of the driving means during a plurality of successive operations, and a second link adapted to operatively connect said carriage to said driving means after said plurality of operations to shift the carriage back to home position during a single operation of said driving means.

9. In a machine of the class described, the combination with a shiftable carriage, a

-83 such that the device driving disk therefor operable to the same extent at each operation thereof, two driving pins on said disk, a hook member operatively connected to the carriage and adapted to be operated by said pins to shift the carriage forwardly, and a second hook member operatively connected to the carriage and adapted to be operated by said pins to shift the carriage into home position, the pin engaging portion of one of said hook members bein offset relatively to the body portion thereof to permit one of said pins to move under said hook member when the other pin is operatively connected to the other hook member.

10. In a machine of the class described, the combination of a carriage,-an operating member having a definite movement at each operation of the machine, a positive connection whereby said member moves said carriage a relatively short distance in one direction-at each of a plurality of successive operations, and a connection'whereby said member moves said carriage in the opposite direction at another operation of the machine, said member acting on the first recited connection with a greater leverage than on the second recited connection so that when the carriage is moved in said opposite direction, it is restored a distance equal to said plurality of movements in the first direction. a 11. The combination of a carriage,a rotating member turned through a definite distance at each operation thereof, a device 83 operated by said rotating member and connected to move the carriage in one direction at each of a plurality of operations of said rotating member and another device 89 acted on by said rotating member and connected to move the carriage in the opposite direction, said connection 89 being acted on by said rotating member at a greater distance from the axis of rotation of the latter than the device 89 moves the carriage back a distance equal to a plurality of steps due to the device 83.

- 12. The combination of a carriage and tions and for then restoring said carriage to its initial position, said mechanism including an operatinginember having a definite motion at each operation of the machine, means whereby said member is connected with said carriage by a comparatively high leverage to move said carriage step-by-step from its initial position to its successive advanced positions and including also a connection acting at a relatively low leverage so that at one operation it restores the carria e from its most advanced position to its initlal position.

13. In a computing and printing machine, thecombination of a carriage, a carriage-driving member having a definite movement at each operation of the machine, means whereby at each of a plurality of successive operations of the machine said member positively communicates to said carriage a step of motion in one direction, and means acting on a different leverage whereby said member at the next operation of the machine positively drives said carriage in the opposite direction to initial position.

FOREST LINK. 

